marcy



(No Model.)

3 Sheets-Sheet l. L. MAR'GY.

SEWING MAGHINE.

No. 433,900 Patented Aug. 5, 1890.

WITNE55EE1 INVENTEIR we norms virus 00., Wo'ro-umo mews-crow, o. c,

(No Model.) 3 Sheets-Sheet 2 L. MAROY. I

SEWING MACHINE.

No. 433,900. h Patented Aug. 5, 1890'.

h 0m v 5 E 1 LI FlllaQ -WlTNEE|5E5 INVENTDR mo J; W W i @fim (No Model.)'3 SheetsSheet 3.

L. MARGY; SEWING MACHINE. No. 433,900. Patented Aug. 5, 1890,

WITNESS E5 v INVENTEIR zww l I UNITED STATES :IPA'TENT oFmE.

LEONARD MARCY, OF NORTH BERGEN, NEWV JERSEY, ASSIGNOR TO MARY.

LOUISE MAROY, OF SAME PLACE.

SE WING JVIACHINE.

SPECIFICATION forming part of Letters Patent No. 433,900, dated August5, 1890.

Application filed February 20, 1890. 'Serial No. 341,187. (No model.)

To all whom, it may concern:

Be it known that I, LEONARD MARCY, of 'Nd'rth Bergen, Hudson county, NewJersey, have invented an Improved Sewing-Machine, of which the followingis a specification.

This invention relates to a sewing-machine, in which a semi-annular hookthat engages the needle-thread co-operates with a cylindricalspool-holder that constitutes the shuttle. The ordinary spool of cottonor silk may be placed into this spool-holder without unwinding thethread and rewinding it upon the bobbin.

The invention consists in the various features of improvement morefullypointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional elevation of myimproved sewingmaohine. Fig. 2 is a bottom View of the workplate; Fig.3, a detail perspective of the hook; Fig. 4, a detail side view of thespool-holder.

.Figs. 5, 6, and 7 are sectional end views of the machine, showing thehook in different positions. Fig. 8 is a longitudinal central sectionthrough the spool-holder.

The letter a represents the work-plate of a sewing-machine. b is thehead; 0, the needle,

and c the needle-thread. The needle-thread is looped by a hook d,secured to an arm 01, which is connected to a revolving shaft (1 by anarm (Z The shaft (1 is driven from the power-shaft in manner hereinafterdescribed.

The hook d is of semi-annular formthat is to say, it is open at thecenter, (for the passage through it of the spool-holder,) and is bent toapproximate the form of a half-circle, Figs. 5 to 7. The peculiar shapeof the hook is more fully illustrated in Fig. 3. From the apex (Z thehook is divided into two arms d d. The arm 01 is provided at its inneredge with a point-0r hook d facing in the same direction as pointed endd while the arm (1 serves as a guard to protect the lower thread fromsuch hook.

e is the spool-holder, free to be driven so as to pass through the hook.This spoolholder is made of the form of an annular drum, closed at oneend and open at the other end, for the insertion of a spool of thread 6of any one of the ordinary sizes. This spool is slipped over a tube 6extending through the spool-holder and open at both ends. and isconfined within the spool-holder by a catch m. In Fig. 4 the spool e isshown to be partly withdrawn, so as to be visible. The lower thread 6passes through a slit 6 of the spool-holder, and is then engaged by adouble tension-hook c. This tension-hook 1s screwed to the spool-holder,and by adjusting the screw 6 the tension may be regulated. Thetension-hook e is, moreover, provided with the guard 6 having born abetween which the shuttle-thread passes out, so as to be alwaysdelivered upward at the proper inclination. 6 5

In order to drive the spool-holder c, it is provided with a catch e,which. is engaged by an arm f 'secured to a sliding rod or driver f,receiving reciprocating motion from the work-shaft, in mannerhereinafter more fully described. The arm f is partly embraced by asmall bulge on catch 6 Figs. 4 and 7, and if the spool-holder isslightly revolved toward the opera-tor by the live-spindle 61 111 mannerhereinafter described, the catch will partly release the arm f and theloop of the needle-thread will readily pass up between the catch and thearm.

In order to properly guide the spool-holder, it is mounted upon a fixedshaft g, placed opposite to a reduced end of shaft d Between the shaftsg d there is an open space,-F1g. 1, through which the needle-thread isfree to ass. p The tube 6 of the spool-holder is slipped over the shaftg, and by reciprocating the spool-holder it is driven so as toalternately ride upon shaft g and shaft d clearing the open spacebetween such shafts at every motion. The shaft 9 may be drawn out by ahead g, so that a new spool may be placed upon it. The shaft 9 is heldin place by a locking-pin g In order to impart revolving motion to thehook-shaft 01 the following mechanism has been shown to be employed: I

h is the work-shaft, upon which is mounted a cam or eccentric, as usual.Tins eccentric is surrounded by the ring h, to which is secured thepitman h passing through a rocking bearing h The revolution of the loowork-shaft imparts a rocking and reciprocating motion to pitman 7Z2. Thelower end of the pitman 71 is connected bylink 71 and crank its to shaft(:1 so as revolve the same.

I To reciprocate the spool-driver f, the pitman 71, is provided with anenlargement h, placed between a pair of cheeks 71, secured to a shaftt". The motion of pitman k will rock shaft 11'. The shaft *6 impartsreciprocating motion to sliding rod f through the inter mediate link iand arm t The operation of the machine will be readily understood. Thespool being to the right and traveling toward the left, the point at ofthe hook d will first enter to the right of the shuttle thread to crowdthe latter aside. Next the loop of the needle-thread is formed, asusual, and this loop is engaged by the hook d", Fig. 5. As thespool-holder completes its travel to the left and has reached the hookagain on its backward journey, the latter has completed ahalf-revolution, and thus formed a loop of the needle-thread, throughwhich the spool-holder is free to pass, Fig.6. After the spool-holderhas passed through the loop,

the latter is drawn up by the needle to complete the stitch, as shown inFig. 7.

The spool-holder, it will be observed, travels partly on a fixed shaftor spindle g and partly on a revolving shaft or spindle d WVhile on therevolving spindle it is by such spindle slightly revolved toward theoperator, which opens the catch a f and permits the loop of the needle-thread to readily slip through the catch.

I claim as my invention- 1. The combination, in asewing-machine, of aspool-holder with a catch 6 at one end thereof, a spool-driver f havingarm f, that is embraced by said catch, a live-spindle d revolved fromthe work-shaft, and a deadspindle g, opposite thereto, on which thespoolholder is reciprocated by the driver, substantially as specified.

2. The combination, in a sewing-machine, of a tubular spool-holderwith abulged catch 6 at one end, a spool-driver having arm f, embraced by saidcatch, a spool-retaining catch an at the opposite end of thespoolholder, and a tension device on its face, substantially asspecified.

3. The combination, in a sewing-machine, of a reciprocating spool-holderwith a revolving loop-taking hook composed of two arms d d, divergingfrom apex (Z and a hook (2 secured to the inner edge of arm d and facingin the same direction as apex d substantially as specified.

4. The-combination, in a sewing-machine, of a revolving hook and areciprocating spoolholder-with the following driving mechanism: pitman7L2, link 72*, orankh hook-revolving shaftcP, connected to said crankand with a spool-driver f, intermediate links 01 2' rockshaft i, havingcheeks 't', and an enlargement h on pitman 72. engaged by said cheeks,substantially as specified.

LEONARD MARCY.

Witnesses:

F. v. BRIEsEN, WM. WAGNER.

